CN103404470B - Finless eel net cage ecological breeding method - Google Patents
Finless eel net cage ecological breeding method Download PDFInfo
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- CN103404470B CN103404470B CN201310375564.9A CN201310375564A CN103404470B CN 103404470 B CN103404470 B CN 103404470B CN 201310375564 A CN201310375564 A CN 201310375564A CN 103404470 B CN103404470 B CN 103404470B
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- eel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Abstract
The invention relates to a finless eel net cage ecological breeding method. The finless eel net cage ecological breeding method comprises the steps of adopting a net cage low-density sparse breeding aquaculture technology to create a finless eel symbiotic ecological environment, selecting bred high-grade parental finless eels, performing intensive cultivation, enabling the finless eels to naturally perform spawning, fertilization, hatch and birth in a net cage, then taking away the parental finless eels, artificially feeding young finless eels and finally breeding finless eels. The method utilizes the net cage to breed finless eel fry, operation is easy, bred finless eel fry is easy to catch, the working amount is small, the production cost is low, the water quality is easy to manage, the problem that the finless eel fry is difficult to catch is solved, and industrial large-scale production of the finless eel fry is facilitated. In addition, the method does not adopt artificial spawning, meets the requirement for gonad development through advanced breeding of the parental finless eels and achieves natural spawning and fertilization, the bred fry is good in constitution and quick in growing speed, and the survival rate of the finless eel fry is improved.
Description
Technical field
The present invention relates to culture of swamp eel industry technical field, be specifically related to a kind of method of swamp eel net cage ecological breeding.
Background technology
In recent years, wild natural swamp eel seed reduces year by year, wild eel seedling scarcity of resources, the fast development again of culture of swamp eel industry, depends merely on the needs that natural seeding, wild fry can not meet foster eel industry, therefore, artificial propagation solves culture of swamp eel seed inevitable approach in short supply, and artificial propagation eel seedling is imperative.
But due to swamp eel have sex reversal, fish brood amount few, lay eggs in batches, the characteristic such as brooding time is long, membrane is irregular, artificial propagation difficulty is large, and large-scaled propugation technology not yet breaks through.
Low, the difficult cultivation of the eel seedling rate of recapture that the methods such as existing seedling rearing in earth ponds, rice field nursery are cultivated, close eel difficulty are reclaimed, and workload is large, and cost is high, not easily forms large-scale production.
Therefore, be necessary to work out a kind of new swamp eel seedling-cultivating method.
Summary of the invention
The object of the invention is to a kind of method providing swamp eel net cage ecological breeding in order to overcome the under-supply problem of culture of swamp eel industry seed that prior art exists, the eel seedling that the present invention breeds more easily is fished for, and workload is little, and production cost is low, water quality manageability, improves the survival rate of eel seedling.
Object of the present invention is achieved through the following technical solutions, and a kind of method of swamp eel net cage ecological breeding, comprises the following steps:
Step (1), parent plants eel cultivation: in annual July, select the eel seedling of high-quality health, putting in a suitable place to breed at area is 4m
2parent culture net cage in, throw something and feed to Second Year at the beginning of 6 months with fresh food, lay water plants water peanut in described parent culture net cage;
Step (2), selects parent and plants eel: in the eel seedling that step (1) is cultivated, select physical health, the female eel of gonadal maturation and male eel plant eel as parent, described male eel >=150g/ tail, described female eel >=50g/ tail;
Step (3), net cage mate and oviposit: in the ratio of male and female 1:1, respectively puts a described male eel and described female eel at each net cage of laying eggs, and allows its natural spawning fertilization, described in lay eggs in net cage and lay water plants water peanut;
Step (4), reinforced cultivating: throw something and feed with fresh food, throws something and feeds when every afternoon 5 ~ 6 once;
Step (5), plant eel except parent: described in net cage of laying eggs occur that foam nest is after 5 ~ 7 days, open except parent plants eel by rice eel cage;
Step (6), cement pit cultivates young eel: removed by described water plants water peanut of laying eggs in net cage, the young eel hatched is moved in cement pit and cultivates, and throws something and feeds one week continuously, then throw something and feed with water earthworm with wheel animalcule.
Preferably, in step (1), the specification of described eel seedling is 15 ~ 25/500g.
Preferably, in step (1) and step (4), described fresh food is the rotten or fresh earthworm of fresh fish.
Preferably, in step (3), described in the lay eggs specification of net cage be 1m × 1m × 1m.
Preferably, in step (6), the area of described cement pit is 1m
2/, each described cement pit throws in young eel described in 150 tails.
Compared with prior art, the present invention has following beneficial effect: the present invention utilizes net cage to breed eel seedling, be easy to operation, the eel seedling of breeding more easily is fished for, workload is little, and production cost is low, water quality manageability, solve the problem that swamp eel seed difficulty is fished for, the industrial scale being conducive to swamp eel seed is produced; And this method does not carry out artificial induced spawning, utilize pre-incubation kind eel to reach the requirement of gonad development, natural spawning fertilization, the seed physique cultivated is healthy and strong, and fast growth, improves the survival rate of eel seedling.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is the flow chart of method provided by the invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make certain adjustments and improvements.These all belong to protection scope of the present invention.
embodiment 1
The present embodiment relates to a kind of method of swamp eel net cage ecological breeding, as shown in Figure 1, comprises the following steps:
Step (1), parent culture: in annual July, select the eel seedling of 15/500g of high-quality health, putting in a suitable place to breed at area is 4m
2, in establish in the parent culture net cage of water plants water peanut, with fresh fish, rotten or fresh earthworm is thrown something and fed, to Second Year at the beginning of 6 months;
Step (2), selects parent: in the eel seedling cultivated, select physical health, the female eel of gonadal maturation and male eel plant eel as parent, male eel >=150 gram/fish, female eel >=50 gram/fish;
Step (3), net cage mate and oviposit: in the ratio of male and female 1:1, each specification be 1m × 1m × 1m, the net cage of laying eggs of interior laying water peanut respectively puts an above-mentioned male eel and above-mentioned female eel, allows its natural spawning fertilization;
Step (4), reinforced cultivating: throw something and feed with fresh fish gruel or fresh earthworm, throw something and feed when every afternoon 5 once;
Step (5), opens except parent plants eel: net cage of laying eggs occurs that foam nest is after 7 days, opens except parent plants eel by rice eel cage;
Step (6), cement pit cultivates young eel: removed by the water plants water peanut of laying eggs in net cage, the young eel hatched is moved in cement pit and cultivates, and the area of cement pit is 1m
2/, each cement pit throws in 150 tail children eels, throws something and feeds one week continuously, then throws something and feeds with water earthworm, every day 3 times with wheel animalcule.
embodiment 2
The present embodiment relates to a kind of method of swamp eel net cage ecological breeding, as shown in Figure 1, comprises the following steps:
Step (1), parent culture: in annual July, select the eel seedling of 20/500g of high-quality health, putting in a suitable place to breed at area is 4m
2, in establish in the parent culture net cage of water plants water peanut, with fresh fish, rotten or fresh earthworm is thrown something and fed, to Second Year at the beginning of 6 months;
Step (2), selects parent: in the eel seedling cultivated, select physical health, the female eel of gonadal maturation and male eel plant eel as parent, male eel >=150 gram/fish, female eel >=50 gram/fish;
Step (3), net cage mate and oviposit: in the ratio of male and female 1:1, each specification be 1m × 1m × 1m, the net cage of laying eggs of interior laying water peanut respectively puts an above-mentioned male eel and above-mentioned female eel, allows its natural spawning fertilization;
Step (4), reinforced cultivating: throw something and feed with fresh fish gruel or fresh earthworm, throw something and feed when every afternoon 6 once;
Step (5), opens except parent plants eel: net cage of laying eggs occurs that foam nest is after 6 days, opens except parent plants eel by rice eel cage;
Step (6), cement pit cultivates young eel: removed by the water plants water peanut of laying eggs in net cage, the young eel hatched is moved in cement pit and cultivates, and the area of cement pit is 1m
2/, each cement pit throws in 150 tail children eels, throws something and feeds one week continuously, then throws something and feeds with water earthworm, every day 4 times with wheel animalcule.
embodiment 3
The present embodiment relates to a kind of method of swamp eel net cage ecological breeding, as shown in Figure 1, comprises the following steps:
Step (1), parent culture: in annual July, select the eel seedling of 25/500g of high-quality health, putting in a suitable place to breed at area is 4m
2, in establish in the parent culture net cage of water plants water peanut, with fresh fish, rotten or fresh earthworm is thrown something and fed, to Second Year at the beginning of 6 months;
Step (2), selects parent: in the eel seedling cultivated, select physical health, the female eel of gonadal maturation and male eel plant eel as parent, male eel >=150 gram/fish, female eel >=50 gram/fish;
Step (3), net cage mate and oviposit: in the ratio of male and female 1:1, each specification be 1m × 1m × 1m, the net cage of laying eggs of interior laying water peanut respectively puts an above-mentioned male eel and above-mentioned female eel, allows its natural spawning fertilization;
Step (4), reinforced cultivating: throw something and feed with fresh fish gruel or fresh earthworm, throw something and feed when every afternoon 5 once;
Step (5), opens except parent plants eel: net cage of laying eggs occurs that foam nest is after 5 days, opens except parent plants eel by rice eel cage;
Step (6), cement pit cultivates young eel: removed by the water plants water peanut of laying eggs in net cage, the young eel hatched is moved in cement pit and cultivates, and the area of cement pit is 1m
2/, each cement pit throws in 150 tail children eels, throws something and feeds one week continuously, then throws something and feeds with water earthworm, every day 3 times with wheel animalcule.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (1)
1. a method for swamp eel net cage ecological breeding, is characterized in that, comprises the following steps:
Step (1), parent plants eel cultivation: in annual July, select the eel seedling of high-quality health, putting in a suitable place to breed at area is 4m
2parent culture net cage in, throw something and feed to Second Year at the beginning of 6 months with fresh food, lay water plants water peanut in described parent culture net cage, the specification of described eel seedling is 15 ~ 25/500g, and described fresh food is the rotten or fresh earthworm of fresh fish;
Step (2), selects parent and plants eel: in the eel seedling that step (1) is cultivated, select physical health, the female eel of gonadal maturation and male eel plant eel as parent, described male eel >=150g/ tail, described female eel >=50g/ tail;
Step (3), net cage mate and oviposit: in the ratio of male and female 1:1, respectively puts a described male eel and described female eel at each net cage of laying eggs, and allows its natural spawning fertilization, described laying eggs in net cage lays water plants water peanut, described in the lay eggs specification of net cage be 1m × 1m × 1m;
Step (4), reinforced cultivating: throw something and feed with fresh food, throws something and feeds when every afternoon 5 ~ 6 once, and described fresh food is fresh fish gruel or fresh earthworm;
Step (5), plant eel except parent: described in net cage of laying eggs occur that foam nest is after 5 ~ 7 days, open except parent plants eel by rice eel cage;
Step (6), cement pit cultivates young eel: removed by described water plants water peanut of laying eggs in net cage, the young eel hatched is moved in cement pit and cultivates, and throws something and feeds one week continuously, then throw something and feed with water earthworm with wheel animalcule, and the area of described cement pit is 1m
2/, each described cement pit throws in young eel described in 150 tails.
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| CN201310375564.9A CN103404470B (en) | 2013-08-27 | 2013-08-27 | Finless eel net cage ecological breeding method |
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| CN103404470B true CN103404470B (en) | 2015-01-21 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103621443A (en) * | 2013-11-28 | 2014-03-12 | 长江大学 | Method for breeding female parental finless eels based on intermittent feeding |
| CN103960186B (en) * | 2014-05-14 | 2016-04-20 | 中国水产科学研究院长江水产研究所 | A kind of method of swamp eel artificial incubation case and hatching |
| CN104542373A (en) * | 2014-11-30 | 2015-04-29 | 刘长华 | Finless eel fry culture method |
| CN104756906A (en) * | 2015-03-23 | 2015-07-08 | 重庆市涪陵区水洞口养鱼股份合作社 | Method for breeding rice field eel fry |
| CN105454111B (en) * | 2015-12-17 | 2017-11-10 | 安徽省农业科学院水产研究所 | A kind of swamp eel is from numerous self-fertile autotrophy method |
| CN106069951A (en) * | 2016-07-22 | 2016-11-09 | 仙桃市西流河国兵水产养殖专业合作社 | A kind of method that Monopterus albus (Zuiew) Ecology has soil to breed |
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| CN1418540A (en) * | 2001-11-12 | 2003-05-21 | 武汉好运道特种养殖科技有限公司 | Method for cultiating recifield eel in ecological net cage |
| DE102012006275B3 (en) * | 2012-03-29 | 2013-01-31 | Wolfgang Markus | Breeding eels from eggs in a container filled water in controlled environment, comprises producing leptocephalus from fertilized eggs and rearing the leptocephalus in which the fertilized eggs in the container together bring picoplankton |
| CN102986570A (en) * | 2012-12-19 | 2013-03-27 | 中国水产科学研究院长江水产研究所 | Method for increasing fry collecting rate and young fry survival rate of ricefield eels in artificial propagation |
| CN103181342A (en) * | 2011-12-27 | 2013-07-03 | 曹运山 | Ricefield eel culture method |
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| CN103181342A (en) * | 2011-12-27 | 2013-07-03 | 曹运山 | Ricefield eel culture method |
| DE102012006275B3 (en) * | 2012-03-29 | 2013-01-31 | Wolfgang Markus | Breeding eels from eggs in a container filled water in controlled environment, comprises producing leptocephalus from fertilized eggs and rearing the leptocephalus in which the fertilized eggs in the container together bring picoplankton |
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